Lubricator.



PATENTBD AUG. 22, 1905. MOGORD. LUBRIGATOR. APPLIUATION FILED AUG. 8,1904.

2 SHEETS-SHEET 1.

No. 797,742. PATBNTED AUG. 22, 1905. AVG. MOCORD.

LUBRICAV'IORl APPLIUATI'ON FILED AUG. a. 1904.

v2 SHEETS-SHEET 2.

line :v2 m2 of Fig. 1.

.Tnn STATES PATENT OFFICE.

Specification of Letters Patent.

Patented Aug. 22, 1905.

Application filed -ugnat 8, 1904 Serial No. 219,852.

To a/L whom it may concern,.-

Be it known that I, ALVIN C. MCCORD, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Lubricators; and I do hereby declare the following to be a full, clear, and exact descri tionof the invention,x such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to forced-feed lubricators of the positive or ump type, and has forits object to ravi e certain improvements therein wit a view of greater simplicity of construction and increased efiiciency in action.

To these ends my invention consists of the novel devices and combinations of devices hereinafter described, and 'defined in the claims.

The invention is illustrated in the accompanying drawings, wherein like notations refer to like parts throughout the several views.

In said drawings, Figure 1 isa vertical cross-section 'through one form of my imroved lubricator on the line :vf of Fig. 2. ig. 2 is a vertical lon itudinal section on the ig. 3 is a view corresponding to Fig. 1, but illustrating the preferred form of my lubricator; and Fig. 4. is a pjrtial lon itudinal vertical section on the e m4 o Fig. 3, some parts being broken awa The numeral 1 represents the oil-reservoir. .The numeral 2 represents a worm-shaft suitably journaled in the Walls of the reservoir, with the worm portion ofthe shaft onV the interior of the reservoir, and engagin a Worm-gear 3 on a cam-shaft 4, also suitaly supported in the walls of the reservoir and extending at ri ht angles to the worm-shaft 2. One end 0% the worm-shaft 2 projects throu ha wall of the reservoir and has detachaly xed thereto a driving wheel or ulley 5 for the application of power thereto. hev wheel 5 in practice is connected by belt with a pulley on some rotating part of the engine or other machine which is to be lubricated. Instead of the ulley 5 the ordinary well-known pawl-an -ratchet or friction-clutch devices might be substituted for imparting the desired motion to the wormshat 2.

0n the cam-shaft 4 are a series of eccen- 'and 4 as detachably secured to the removable cap or cover 18L of the reservoir. The

cylinder-casting 9 is suitably constructed to I afford an oil-passage at right an les toV the bore of the um -cylinder, and t 's assage is fitted wit suitable .induction chec -valve land eduction check-valve 11, located on opposite sides "of said cylinder bore. An outilow-pipe 12 is detachably secured to the cylinder-casting 9 and in Figs. 1 and 2 isv shown as equipped outside lthe reservoir with a bleeder test-valve 13 and a check-valve 14. The numeral 15 represents elbows con` necting the outiiow-pipes 12 with the distribution pipes or ducts 16, 'which lead tot the bearings or other parts required to be lubricated.

The numeral 17 represents brackets having pins 18, which'work through elon ated slots 7 a, formed in the levers 7. ach

bracket 17 is fixed to .a4 rod 19, which works through suitable guide-keepers 20, supported from one of the walls of the reservoir l. The rod 19 works out through the top plate of the reservoir and is fitted with a hand-nut 21, reacting between the top late of the reservoir and a retainin ideeeper 22, fixed to one of the walls o t e reservoir and serving to prevent longitudinal motion of the nut when the later is rotated, and thus insuring the raising and lowering of the rod 19, the bracket 17, and pin- 18 by the proper rotation of the nut 21. The said parts 17 18 19 constitute an adjustable fulcrum forthe lever 7,'thereby aiording a means for varying the stroke of the lever 7, and consequently of the movable member of the pum to which the same is attached independent y of any variation in the stroke of the eccentric shaft or other device which imparts motion to the said lever 7. Hence it 1s ossible tol rovide an actuating device for t e lever 7 which shall ha've a throw sufficient to impart amaximum stroke to the movable member of thepump, so as to get the full capacit of the pum at every stroke, if so' desire and then t e adjustable'ulcrum ma be shifted and set to reduce the length o the stroke of the piston to one of minimum length for securing a minimum feed from that particular pump. Every pump is thus independent y variable in respect to the actuating device for the lever 7, and of course it follows that the several pumps are independrotary cam-shaft', may be driven at any speed desired from the moving part of the engine or other-machine which is to be lubricated, ac-

cordi to the character of, the connections from t e pulley 5, or other substitute device which maybe employed to-operate the wormshaft 2 and the worm-gear 3. It is equally obvious that other forms of actuati devices mi ht be substituted for rockin the evers 7.

n the referred form of my ubricator, .as

shown in igs. 3 and 4, the umps, the levers' 7, the adfustable fulcrums or said levers, includingt e parts 17118 1.9 21, and the guidekee `er 22 are detachably secured to, supported by, and depend from the cover or capplate 1, which also carries the bearings or guide-keepers 20 forthe rods 19. Hence all the said parts-to wit, the said um s and the said levers 7 and the adjustab e fu crums for the same-are removable together with the cap or cover 1'a of the reservoir and are also separately or independentl removable from the said cover. It is equal y obvious that all the working parts, with the exception of the pulley or substitute device for rotating the worm-shaft 2, work within the oil contained inthe reservoir.

The numeral 23 re resents the usual filling funneland plug Wit air-inlet to the reservoir.

It is obvious that the lubricator above described is one of great simplicity in constructionand that it is ada ted to meet all the conditions peculiar to t e class of service for which such forced-feed lubricators are intended.

What I claim, and desire to secure by Letters Patent of the United States, is as follows:

1. In a lubricator, the combination with an oil-reservoirl and a pump, of a lever connected to the movable member of the pump, an actuating device for rocking said lever, and' an adjustable ulcrum for said lever, whereby the length of the stroke of the movable mcmber'of the pump may be varied independently of any. variation in the stroke of the lever-actuating device, substantially as described.

2. lin a lubricator, thel combination with an-oilreservoir, of a plurality ofpumps, a correspondin plurality of levers connected to the Inova le members of the pumps, a common actuating device for all: of said levers, and a lurality of adjustable fulcrumblocks for said levers, whereby the length of strokesof the movable members of the pumps ma be independently varied in respect toeac other, and in respect to the stroke of' said actuating device, substantially as described. l

3. In a lubricator, the combination with Vanoil-reservoir and. apump, of a lever connected to the movable member of the pump, an actuating device for rockin said lever, and an adjustable 'fulcrum for said lever,with the said pump, the said lever and the said ad.-

justable fulcrum, all supported from'. the re-` movable cap or lid of the reservoir, and removable together therewith, substantially as described.

4. ln a lubricator, the combination with an oil-reservoir having -a removable cap or cover, of a plurality of pumps, a corresponding plurality of levers connected Ato the movb e member of the pum a commonactuatingdevice for rocking'al of said levers, and a plurality of adjustable fulcrums for said levers, wlth said pumps, said levers, and said adjustable fulcrums, all supported from the said cap or cover of the reservoir, and removable therewith, and each pump, each lever, and each adjustable fulcrum, independently removable from the cover, substantially as and for the purposes set forth.

In. testimony whereof I affix my signature in presence of two witnesses.

ALVIN C. MGCORD.

. Witnesses-z J. W. WEINLAND, C. J. COPELAND. 

